ombustion of Hydrogen
Gas, and the Formation of Water, 437

SECT. VIII.--Of the Oxydation of Metals, 441

CHAP. IX.--Of Deflagration, 452

CHAP. X.--Of the Instruments necessary for Operating
upon Bodies in very high Temperatures, 460

SECT. I.--Of Fusion, ibid.

SECT. II.--Of Furnaces, 462

SECT. III.--Of increasing the Action of Fire, by
using Oxygen Gas instead of Atmospheric Air, 474

APPENDIX.

No. I.--TABLE for Converting Lines, or Twelfth
Parts of an Inch, and Fractions of Lines, into
Decimal Fractions of the Inch, 481

No. II.--TABLE for Converting the Observed
Heighth of Water in the Jars of the Pneumato-Chemical
Apparatus, expressed in Inches and
Decimals, into Corresponding Heighths of Mercury, 482

No. III.--TABLE for Converting the Ounce
Measures used by Dr Priestley into French and
English Cubical Inches, 483

No. IV.--TABLE for Reducing the Degrees of
Reaumeur's Thermometer into its corresponding
Degrees of Fahrenheit's Scale, 484

No. V.--ADDITIONAL.--RULES for Converting
French Weights and Measures into correspondent
English Denominations, 485

No. VI.--TABLE of the Weights of the different
Gasses, at 28 French inches, or 29.84 English
inches barometrical pressure, and at 10 deg. (54.5 deg.)
of temperature, expressed in English measure
and English Troy weight, 490

No. VII.--TABLES of the Specific Gravities of
different bodies, 491

No. VIII.--ADDITIONAL.--RULES for Calculating
the Absolute Gravity in English Troy
Weight of a Cubic Foot and Inch, English
Measure, of any Substance whose Specific Gravity
is known, 505

No. IX.--TABLES for Converting Ounces, Drams,
and Grains, Troy, into Decimals of the Troy
Pound of 12 Ounces, and for Converting Decimals
of the Pound Troy into Ounces, &c. 508

No. X.--TABLE of the English Cubical Inches and
Decimals corresponding to a determinate Troy
Weight of Distilled Water at